Christian Beikov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *resolved* as *Fixed* Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMzk0YTk4OTM2... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16169?atlOrigin=eyJpIjoiMzk0YT... ) HHH-16169 ( https://hibernate.atlassian.net/browse/HHH-16169?atlOrigin=eyJpIjoiMzk0YT... ) NullPointerException when merging detached collections due to LOG.debugf ( https://hibernate.atlassian.net/browse/HHH-16169?atlOrigin=eyJpIjoiMzk0YT... ) Change By: Christian Beikov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) Resolution: Fixed Status: Open Resolved ( https://hibernate.atlassian.net/browse/HHH-16169#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16169#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100216- sha1:7a51a57 )